382 



TREES OF NORTH AMERICA 



symmetrical head, and slender nearly straight branehlets armed with thin straight 

 dark red-brown shining spines |^'-3' long. 



Distribution. 8onih western Missouri, usually in low rich soil ; commou near 

 Cartilage and Webb City. 



**Sta7ne7}s 20. 



-* Anthers rose color. 



16. Crataegus edita, Sarg. 



Leaves oblong-obovate or rarely oval, acute at the gradually narrowed apex, 

 gradually narrowed from near the middle and cuneate at the entire base, and coarsely 

 and often doubly serrate above, when the flowers open from the 15th to the 20th 



of April lustrous and scabrous on the upper surface, with short rigid pale hairs 

 and puberulous on the lower surface, and at maturity coriaceous, dark green, lus- 

 trous, and slightly roughened above, pale yellow-green and scabrous below, l|'-2' long 

 and ^'-V wide; their petioles stout, winged above, villose, ultimately pubescent or 

 puberulous, ^'-^ long; on vigorous leading shoots often slightly divided into lateral 

 lobes, more coarsely serrate and sometimes 3' long and 1^ wide, with stout broadly 

 winged petioles. Flowers ^-f in diameter, on slender villose pedicels, in villose 

 few-flowered compound narrow corymbs; calyx-tube narrowly obconic, glabrous 

 or slightly hairy below, the lobes linear-lanceolate, usually entire or obscurely gland- 

 ular-serrate, glabrous on the outer surface and puberulous on the inner surface; 

 stamens 20 ; anthers small, rose color ; styles 2 or 3. Fruit ripening early in 

 October or in November, on stout glabrous or slightly villose pedicels usually about 

 ^' long, in drooping few-fruited clusters, short-oblong, full and rounded at the ends, 

 slightly pruinose, dull green tinged with red, Y-^' long, with a prominent calyx-tube 

 and elongated spreading lobes puberulous on the inner surface and often deciduous 

 before the ripening of the fruit; flesh very thin, green, dry and hard; nutlets 2 or 

 3, thick, prominently ridged on the back, with a broad low rounded ridge, |' long. 



A tree, in low moist ground sometimes 40 high, with a trunk 1 in diameter, free 

 of branches for 18-20, stout horizontal branches forming a broad rounded sym- 

 metrical head, and nearly straight branehlets villose when they first appear, soon 



